Pillow



FIG. 1 is a front, top and left side perspective view of a pillow showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a side elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view. 

The ornamental design for a pillow, as shown. 